Insulated lunch kit



June 13, 1950 .1. E. HETzLER E rAL INSULATED LUNCH KIT Filed Jan. 16, 1948 INVEN'IOFI` r l A ATTORNEYS.

Jjezlew ALleZZZeW ZeQ l- Patented June 13% 1950 -,f OFFICE INSULATED LUNCH VKIT ,l

Joseph E. Hetzler and Sylvia I. Hetzler,

` Emlenton, Pa.

` ApplicationJanuary 16, 1948, Serial No. 2,766

proved thermo-lunch box ,orfkitg which will be provided with an outer jacket and a removable cover preferably made of metal, and one or more insulated inner receptaclesfrmed with double spacedwalls of glassywithsuitable means being provided fo-r sealing the cover upon the outer jacket when placed thereon.

Another object of the invention is to provide an improved thermo-lunch box or kit which will be provided with an outer jacket and a removable cover preferably made of metal, with one or more insulated inner receptacles formed with double spaced walls of glass, the same being supported upon rubber cushions and disposed inside said outer jacket in spaced relation with respect to the inner walls of said jacket.

A further object of the invention is to provide an improved thermo-lunch kit `with insulated spaced double walled inner food-containing receptacles, the same being highly eiicient in use and relatively inexpensive to manufacture and produce.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts, hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

Referring to the drawing Figure 1 is a longitudinal sectional View through the improved thermo-lunch kit showing the inner insulated spaced double walled receptacle in elevation.

Figure 2 is a top plan view of the improved thermo-lunch kit.

Figure 3 is an enlarged detail view of the upper corner of the improved thermo-lunch kit, the same being partly broken away and in section to show the interior construction thereof.

Figure 4 is an enlarged detail view of the central portion o1 the improved thermo-lunch kit, the same being partly broken away and in section to show the interior construction.

Like characters of reference are used throughout the following specification and the accompanying drawing to designate corresponding parts.

In carrying out the invention, there is provided an improved thermo-lunch kit including an outer mm. (Chaos-4) l `casing or jacket I of substantially rectangular shape, the same being open at its top and formed with an inwardly andupwardly slanting flange 2 about its upper edges.` The jacket I will be made preferablyof metal, and may be painted or other- 'wise decorated, if desired.`

Rubbercu'shions or fpads'3`i`will be secured in the four ybottom corners'of the jacket I, and a centrally'disposed transversely extending rubber cushion or pad 4 will be secured in the bottom of the jacket I approximately midway Iof its length, as clearly shown in Figures 1 and 2 of the drawing.

A pair of insulated spaced double walled glass food-containing receptacles 5 and 6 will be disposed within the jacket I, resting upon the rubber cushions or pads 3 and 4, and will be open at their top portions.

The receptacles 5 and 6 are formed with air spaces 1 between their double walls, thus serving to insulate the receptacles and to keep warm food warm, or cold food cold when placed in the receptacles.

The upper edges of the receptacles 5 and 6 will be formed with -arcuate sealing grooves I8 along their upper edges, said edges terminating at approximately the same level as the upper edges of the flanges 2 formed about the jacket I.

A removable metal cover for the jacket I will be formed with a top portion v9 and lwith downwardly extending side and end flanges I0, which will seat upon the outer edges of the flanges 2 on the jacket I. Rubber gasket strips I I will be supported by the side and end flanges I0 and will seat on the upper surface of the flanges 2, as clearly yshown in Figure 3 of the drawing.

Cork packing I2 will be secured to the under surface of the jacket top and will be extended adjacent the edges of the top and transversely thereof to provide the depending insulating and sealing strips I 3 and I4 which will be formed with bead portions I5, for seating in the arcuate sealing grooves 8 in the upper edges of the glass inner food-containing receptacles 5 and 6. Double spaced wall glass covers I6 will be supported within the cork packing 9 for closing the open top ends of the receptacles 5 and 6.

A hinge strap I1 will be secured by units I8 to one end of the jacket I and will pivotally support the metal clamping and securing hand I9 extending the full length of the jacket I. The hand I9 will be shaped intermediate its length to provide a depending arcuate bearing shoulder 20 for engaging the upper surface of the cover for the jacket I when disposed upon the jacket.

A locking strap 2| will be secured to the opposite end of the jacket I by means of the rivets 22, and will extend upwardly above the top of the cover when in position. A transverse locking slot 23 will be formed in the locking strap '2| to receive the pointed end 24 of the clamping and securing band I9 after the cover has been placed on the jacket l, thereby sealing and securing the `cover in place.

While thepreferred embodiment of the instant invention has been illustrated and described, it will be understood that it is not intended to limit the scope of the invention thereto, as many minor changes in detail of construction may be resorted to without departure from thespirit"off 'chain-l.A

yceptacles rest, v-theupper edges. of theouterjacket being inclined inwardly contacting .with the upper` ends of the lfood receptacles holding the vfood receptacles in spaced relation with-.thejacket a removable cover. closing. the openA top Yof the jacket, `,depending .lmarginaliangesY formed on .the jacket cover, covers .forl thek foodreceptacles 4 held within the jacket cover, an insulating block surrounding the food receptacle covers holding the food receptacle covers in position within the removable cover of the jacket, rubber gasket strips disposed between the insulating block and depending flanges of the jacket cover, the lower edge of said rubber gasket being beveled and tted against the inclined upper edges of the jacketfproviding an Aairtight connection, and N:means` for securing the removable cover in position closing the jacket.

JOSEPH E. HETZLER. SYLVIA I. HETZLER.

REFERENCES CITED The following references are of record in the c `file-of this patent:

UNITED STATES PATENTS Number Name Date 1,067,070 -Steel July 8, 1913 1,831,663 Hill Nov."10, 1931 2,193,381 'Prough Mar. 12,' 1940 2,339g580 Park l Jan. 18, 1944 l FOREIGN PATENTS Number -Country Date f Great Britain June y23, 1932 

